Ruppersberger: Boston bombs detonated with ‘remote control for toy cars’

He said the two suspects, brothers Dzhokhar and
Tamerlan Tsarnaev learned how to construct the bombs from an al Qaeda magazine.

“Brother number two has said they got the information on how
to build the bomb from Inspire magazine,” said Ruppersberger, from an article
titled “How to build a bomb in your mom’s kitchen.”

The Tsarnaev brothers are accused of packing two pressure
cookers full of shrapnel and detonating them last week during the marathon.
Tamerlan Tsarnaev died after a shootout with police, but the younger brother is
in police custody, hospitalized as he recovers from gunshot wounds.

Ruppersberger also said that the brothers had used
explosives they purchased at a fireworks shop in New Hampshire.

“One of the brothers, the oldest brother, went to a shop in
New Hampshire ... and asked for the most volatile explosives, so that you'd
'get the best bang,’ ” he said.

The latest details about the bombing come as investigators
continue to piece together the Tsarnaev brothers’ actions leading up to the
deadly attack.

Dzhokhar Tsarnaev, who has been charged in the attacks, acknowledged
his role in carrying out the bombings, two unidentified officials told the
Associated Press on Wednesday.

House lawmakers have also scheduled hearings to probe if the
FBI, which had been alerted to the older brother’s possible ties to Islamist
extremists, failed to miss critical red flags which could have prevented the
attack beforehand.

Speaker John Boehner (R-Ohio) vowed on Wednesday to “get to
the bottom of this,” and raised questions about whether intelligence agencies
and law enforcement had failed to properly share information.

The Department of Homeland Security was aware of a trip
Tamerlan Tsarnaev took to volatile regions of Russia plagued by jihadi violence,
but the FBI which spoke to him before the trip after being tipped by Russian
investigators did not interview the older brother upon his return.